If you hear fluttering, rustling, or light scratching sounds around dusk or dawn, it may indicate a bat infestation in your attic, walls, or chimney. These nocturnal mammals emerge at night to ...

Bats communicate with one another by making high-pitched squeaking sounds. Likewise, if you hear scratching sounds coming from your attic during the night, that could mean bats are in there.

Chittering and the occasional sounds of acorns rolling across ... for those with weakened immune systems. Signs of bats living in your attic: Soft scratching noises. Most active at sunup and ...